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WAIS Divide
Liquid-bearing cloud visible OD correspondence with LW opacity
Liquid and Ice Water Paths Comparisons – ERA-5
Observedliquid&nomodelliquid–61%Modelliquid&noobservedliquid–56%
Nocorrela4on
Observedice&nomodelice–24%Modelice&noobservedice–27%
Reasonablecorrela4on,mainlyathigherIWP
Silberetal.,J.Clim.,submi1ed
Liquid and Ice Water Paths Comparisons – AMPS
Observedliquid&nomodelliquid–99.5%Modelliquid&noobservedliquid–35%Notmanydatapointstocorrelate…
Observedice&nomodelice–15%Modelice&noobservedice–25%
Weakcorrela4onathigherIWPvalues
Silberetal.,J.Clim.,submi1ed
Resolved Cloud Mask • HourlycloudmasksaregeneratedusingtheobservaSonsfromtheAWAREcampaign.
• CloudoccurrenceSmeseriesisderivedfromtheresolvedcloudmasks.
Tenuousliquid-bearing Opaqueliquid-bearing Iceonly
August,2016
Wewillexaminethemodelperformanceinthreedifferentcloudregimes:1. Tenuousliquid-bearing(mixed-phase)
clouds(LWP<25g/m2).2. Opaqueliquid-bearing(mixed-phase)
clouds(LWP≥25g/m2).3. Iceclouds.
Drizzlecase(High-La4tudesessiontomorrowanernoon)
Silberetal.,JGR,2018
WAIS Divide
Silberetal.,J.Clim.,inrevision
Sounding comparison
Modeled vs. Observed LW Radiation
Lack of the Opaque Regimes in the Models
LW↓
LW↑Summer
winter
Separa4on
Cloudy vs. Clear-sky LW radiation
LW↓
LW↑Summer
winter
Separa4on
Seasonal Behavior
Modeled LW↓ Bias
Note:onanannualperspec4ve,themodelsdoprovideareasonableperformance!
Modeled vs. Observed Downwelling LW
Modeled vs. Observed Downwelling SW